Incorrect error message for use of type as a namespace

[DanielRosenwasser]

interface OhNo {
}

declare let y: OhNo.hello;
//             ~~~~
//             'OhNo' refers to a type, but is being used as a value here.

OhNo is actually being used as a namespace, not a value. CC @jwbay in case you want to tackle this one. 😄

[DanielRosenwasser]

Thanks @mylesmegyesi!